DEF-short for "definitive"
JAM-a record

DEF JAM - A DEFinitive record.

Def Jam Records was a record label started by Rick Rubin and Russel Simmons in 1984 out of Rubin's dorm room. Awesome music.
Def Jam record label rocks out.
by the complete 196 September 27, 2005
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come on pal! i'm a white british kid and i know def jam didn't originate in the mid 90's and has fuck all to do with mos def. it (was) a legendary record label, see public enemy, beastie boys, ll cool j and bunch of other old skool legends
...err, i think slick rick used to be there too. btw, it's bit wank now, like most hip hop
by rich May 5, 2005
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If you see a girl but she is with another person Def Jam is to knock the guy out and to get your girl.
"Dude that chick is too hot for that jerk Def Jam him."
by Jay sin July 19, 2007
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Originated in the 90's. Made by a poet/rapper named Mos Def. Def means Definate which was first used by Run-DMC. Around the 90's there was Def Jam, a company that influenced Rap, Comedy and many other things. Also a video game featuring people signed on the Def Jam label.
"Hey you get that new Def Jam video?"

"I can't beat Def Jam! Ahhhhhhh"
by Jing Cisco April 2, 2005
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a lame band concurrent with 98degrees.
also an adjective describing something extremely awkward
'So my girlfriend and i got to planned parenthood and they told us that she wasn't pregnant, she was just bloated. It was def jam awkward.'
by Marc Chad Caro-armstong August 27, 2007
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BEST. GAME. EVER!!! I love it! A wrestling game with Ludacris, WC, Method Man, Redman, Scarface, Joe Budden, DMX, Capone, and my personal favorite, N.O.R.E . It's so bad, it's good. Super-cheesy dialogue, with bitch-fights through out. Beware of playstation thumb, though.
by Nastina September 10, 2005
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Probably the best game released in 2004, and the best game ever released in the world! It was the sequel to Def Jam Vendetta, and had over 60 characters on the game, 43 being real people. It featured such matches as the Window Match, the Burn em' match, and the Train match. It had some of the same moves that were from Def Jam Vendetta, and also had new moves. You could use the environment, and the crowd as a key factor in any fight you had on the game. The game featured such people as Method Man, Christopher Judge as D-Mob, Redman, Ludacris, Sticky Fingaz, Memphis Bleek, Carmen Electra, Shawnna, Fat Joe, Busta Rhymes, and etc. If you don't own it now, you should really get this shit!
Friend 1: Have you ever heard of Def Jam Fight For NY?

Friend 2: Fuck yes! It's the shit!

Friend 1: Wannaplay it?

Friend 2: Fuck Yeah!
by Ruin11thHour September 2, 2009
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